Home / 12,865.42-19,299.95-4,097.37

Finding the Fourth Proportional to 12,865.42, 19,299.95 and 4,097.37

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Solution

The fourth proportional to 12,865.42, 19,299.95 and 4,097.37 is: 6,146.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,865.42 : 19,299.95 = 4,097.37 : x
  2. Step 2: Convert to fraction form
    12,865.42/19,299.95 = 4,097.37/x
  3. Step 3: Cross multiply
    12,865.42x = 19,299.95 × 4,097.37
  4. Step 4: Simplify right side
    12,865.42x = 79,079,036.13
  5. Step 5: Solve for x
    x = 79,079,036.13/12,865.42
  6. Step 6: Final answer
    x = 6,146.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.